dk_ch has helped students times in
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On a 438 day streak. Longest streak: 438 days
##### 478 thank you notes
• @susil xavier susil thank you so much . This equation makes me mad . Your answer gives me hope that trigonometry is not so tough. thanks a lot. for this answer
15 hours ago
• Someone i was confused with this question ,but now I' am very clear with it
yesterday
• Someone from India Thanks for this answer
yesterday